It will either say it's formatting the card; or it will ask if you wish to format (warning that it will erase any data on the card.)
So, just put the new card in the slot. Your compliance data and last 30 days detailed data (but not the high sample rate data) will be written to the card.

INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.

Thanks for the help! I thought the card was bad but perhaps that's not the problem. The display just flashes ResMed on and off. I took the card out and put it in the laptop and it said it couldn't read it but now it's fine with it's data and I tried a new card with no luck either. Just flashes ResMed Any other ideas would be great?

Just my personal opinion. My posts are not medical advice or a statement of fact. Please consult a qualified physician or other qualified medical personnel. Please comply with all applicable laws, codes, regulations, and protocols.

Possible. It would be nice to have a spare to swap in.
But, it could just be the machine has gone belly-up.

You might try it with the humidifier separated from the blower unit.

INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.

Does the machine not work and just sits there flashing, or does it just not recognize a data card and record correctly? What happens if you run the machine without the card? It really doesn't care if it has a card in it's slot or not.

If it is a card problem, how big a card are you trying to use? Is it an SDHC card and not a plain vanilla SD card that is less than 2GB (some S-9s will not accep SDHC cards - only old, small capacity plain vanilla cards - mine were like that.)

Does the machine not work and just sits there flashing, or does it just not recognize a data card and record correctly? What happens if you run the machine without the card? It really doesn't care if it has a card in it's slot or not.

If it is a card problem, how big a card are you trying to use? Is it an SDHC card and not a plain vanilla SD card that is less than 2GB (some S-9s will not accep SDHC cards - only old, small capacity plain vanilla cards - mine were like that.)

OMMOHY

It doesn't work at all. It does appear to power up since it does flash "resmed" in the display but that's all that is shown. I can't get to any other menu options and it doesn't turn on. The original card seems fine in the resScan software but a new card doesn't change anything or no card at all. I just called resmed and they said I need to take it to a local dealer for service.

stb's suggested idea about power supply made me think of my S9 Autoset's recent problem. The smaller, third pin in the power connector (where 24 v. power is connected to the machine) had broken off. I learned that without this pin, the machine can't do much of anything. I took it to my DME, and they sent it to Resmed's facility in San Diego for evaluation. The results were returned to the DME with the options of repair the machine or dump it. When I got the repair estimate, I told the DME to have it repaired. As a result, my Autoset has just about all new innards (complete blower housing, PCB and acoustic foam.).

RE: taking yours to a local dealer for repair makes me wonder if mine went to ResMed in CA because my DME couldn't repair it? That is, if a larger DME is who was meant by "local dealer for service."

INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.